pngpread.c File Reference

#include "pngpriv.h"

Go to the source code of this file.

Macros
#define	PNG_READ_SIG_MODE   0
#define	PNG_READ_CHUNK_MODE   1
#define	PNG_READ_IDAT_MODE   2
#define	PNG_READ_tEXt_MODE   4
#define	PNG_READ_zTXt_MODE   5
#define	PNG_READ_DONE_MODE   6
#define	PNG_READ_iTXt_MODE   7
#define	PNG_ERROR_MODE   8
#define	PNG_PUSH_SAVE_BUFFER_IF_FULL
#define	PNG_PUSH_SAVE_BUFFER_IF_LT(N)

Functions
void PNGAPI	png_process_data (png_structrp png_ptr, png_inforp info_ptr, png_bytep buffer, size_t buffer_size)
size_t PNGAPI	png_process_data_pause (png_structrp png_ptr, int save)
png_uint_32 PNGAPI	png_process_data_skip (png_structrp png_ptr)
void	png_process_some_data (png_structrp png_ptr, png_inforp info_ptr)
void	png_push_read_sig (png_structrp png_ptr, png_inforp info_ptr)
void	png_push_read_chunk (png_structrp png_ptr, png_inforp info_ptr)
void PNGCBAPI	png_push_fill_buffer (png_structp png_ptr, png_bytep buffer, size_t length)
void	png_push_save_buffer (png_structrp png_ptr)
void	png_push_restore_buffer (png_structrp png_ptr, png_bytep buffer, size_t buffer_length)
void	png_push_read_IDAT (png_structrp png_ptr)
void	png_process_IDAT_data (png_structrp png_ptr, png_bytep buffer, size_t buffer_length)
void	png_push_process_row (png_structrp png_ptr)
void	png_read_push_finish_row (png_structrp png_ptr)
void	png_push_have_info (png_structrp png_ptr, png_inforp info_ptr)
void	png_push_have_end (png_structrp png_ptr, png_inforp info_ptr)
void	png_push_have_row (png_structrp png_ptr, png_bytep row)
void PNGAPI	png_progressive_combine_row (png_const_structrp png_ptr, png_bytep old_row, png_const_bytep new_row)
void PNGAPI	png_set_progressive_read_fn (png_structrp png_ptr, png_voidp progressive_ptr, png_progressive_info_ptr info_fn, png_progressive_row_ptr row_fn, png_progressive_end_ptr end_fn)
png_voidp PNGAPI	png_get_progressive_ptr (png_const_structrp png_ptr)

Macro Definition Documentation

PNG_ERROR_MODE

#define PNG_ERROR_MODE   8

PNG_PUSH_SAVE_BUFFER_IF_FULL

#define PNG_PUSH_SAVE_BUFFER_IF_FULL

Value:

if (png_ptr->push_length + 4 > png_ptr->buffer_size) \
   { png_push_save_buffer(png_ptr); return; }

PNG_PUSH_SAVE_BUFFER_IF_LT

#define PNG_PUSH_SAVE_BUFFER_IF_LT

(

N

)

Value:

if (png_ptr->buffer_size < N) \
   { png_push_save_buffer(png_ptr); return; }

PNG_READ_CHUNK_MODE

#define PNG_READ_CHUNK_MODE   1

PNG_READ_DONE_MODE

#define PNG_READ_DONE_MODE   6

PNG_READ_IDAT_MODE

#define PNG_READ_IDAT_MODE   2

PNG_READ_iTXt_MODE

#define PNG_READ_iTXt_MODE   7

PNG_READ_SIG_MODE

#define PNG_READ_SIG_MODE   0

PNG_READ_tEXt_MODE

#define PNG_READ_tEXt_MODE   4

PNG_READ_zTXt_MODE

#define PNG_READ_zTXt_MODE   5

Function Documentation

png_get_progressive_ptr()

png_voidp PNGAPI png_get_progressive_ptr

(

png_const_structrp

png_ptr

)

png_process_data()

void PNGAPI png_process_data	(	png_structrp	png_ptr,
		png_inforp	info_ptr,
		png_bytep	buffer,
		size_t	buffer_size )

png_process_data_pause()

size_t PNGAPI png_process_data_pause	(	png_structrp	png_ptr,
		int	save )

png_process_data_skip()

png_uint_32 PNGAPI png_process_data_skip

(

png_structrp

png_ptr

)

png_process_IDAT_data()

void png_process_IDAT_data	(	png_structrp	png_ptr,
		png_bytep	buffer,
		size_t	buffer_length )

png_process_some_data()

void png_process_some_data	(	png_structrp	png_ptr,
		png_inforp	info_ptr )

png_progressive_combine_row()

void PNGAPI png_progressive_combine_row	(	png_const_structrp	png_ptr,
		png_bytep	old_row,
		png_const_bytep	new_row )

png_push_fill_buffer()

void PNGCBAPI png_push_fill_buffer	(	png_structp	png_ptr,
		png_bytep	buffer,
		size_t	length )

png_push_have_end()

void png_push_have_end	(	png_structrp	png_ptr,
		png_inforp	info_ptr )

png_push_have_info()

void png_push_have_info	(	png_structrp	png_ptr,
		png_inforp	info_ptr )

png_push_have_row()

void png_push_have_row	(	png_structrp	png_ptr,
		png_bytep	row )

png_push_process_row()

void png_push_process_row

(

png_structrp

png_ptr

)

png_push_read_chunk()

void png_push_read_chunk	(	png_structrp	png_ptr,
		png_inforp	info_ptr )

png_push_read_IDAT()

void png_push_read_IDAT

(

png_structrp

png_ptr

)

png_push_read_sig()

void png_push_read_sig	(	png_structrp	png_ptr,
		png_inforp	info_ptr )

png_push_restore_buffer()

void png_push_restore_buffer	(	png_structrp	png_ptr,
		png_bytep	buffer,
		size_t	buffer_length )

png_push_save_buffer()

void png_push_save_buffer

(

png_structrp

png_ptr

)

png_read_push_finish_row()

void png_read_push_finish_row

(

png_structrp

png_ptr

)

png_set_progressive_read_fn()

void PNGAPI png_set_progressive_read_fn	(	png_structrp	png_ptr,
		png_voidp	progressive_ptr,
		png_progressive_info_ptr	info_fn,
		png_progressive_row_ptr	row_fn,
		png_progressive_end_ptr	end_fn )